Natalia prints a photo of a covered bridge. The print measures 6 centimeters by 4 centimeters. She wants to resize the photo into the size of a postcard with a length of 15 centimeters. What will be the area of the postcard?

A. 150 square centimeters
B. 60 square centimeters
C. 2.5 square centimeters
D. 24 square centimeters

1 answer

The original size of the photo is 6 cm by 4 cm, so the area of the photo is 6 cm * 4 cm = 24 square cm.

When resizing the photo to fit on a postcard with a length of 15 cm, the width of the postcard will be proportional to the original width of the photo.

Original width: 6 cm
Original height: 4 cm
Original aspect ratio: 6/4 = 1.5

New width on the postcard: 15 cm
New height on the postcard: 15 cm / 1.5 = 10 cm

Therefore, the area of the postcard will be 15 cm * 10 cm = 150 square cm.

Therefore, the answer is:
A. 150 square centimeters